Home Cosmetic Science Talk Formulating Help with my shampoo

  • Help with my shampoo

    Posted by Glodie on October 30, 2023 at 1:18 pm

    Hello, I have been using this shampoo,it’s really working for me now I’m about to buy ingredients again but I’m on a tight budget,can I replace sodium Lauryl sarcosinate with Alfa olefin sulfonate at same % anything I can replace or omit in the formula,thank you<div>

    Aqua 48%

    Sodium Lauryl sarcosinate 8%

    Natrosol 3%

    Decyl glucoside 8%

    Coco betaine 7%

    Glycerine 10%

    Dimethicone 2%

    Polyquaterium-7 5%

    Polyquaterium 11 5%

    Hydrolyses protein 0.5%

    Preservative euxyl9010 0.5%

    Fragrance 0.5 %


    kot replied 3 weeks, 4 days ago 3 Members · 3 Replies
  • 3 Replies
  • camel

    October 31, 2023 at 1:37 am

    Yes, you can use Sodium C14-16 Alpha Olefin Sulfonate instead of Sodium Lauroyl Sarcosinate. Both are anionic surfactants, but you might find they perform differently, so you’ll have to test it and see for yourself.

    You can completely remove glycerin and polyquaternium-11 to save on cost. Assuming you are using a 9% solution of polyquaternium-7, you can probably reduce it to 3%. I don’t know what grade of natrosol you are using, but 3% does seem rather high, and I think <=1% should be enough for a shampoo. Decyl glucoside can have a thinning effect and make it harder to thicken formulas, it also doesn’t feel that good on hair, so you might consider removing it and reducing natrosol. I also don’t see how you’re adding dimethicone to this without separation, unless the natrosol is keeping it held. Lastly, I would recommend adding a chelating agent like Disodium EDTA to boost preservative efficacy.

    Consider this as a starting point for testing:

    • Water: q.s.
    • Sodium Lauroyl Sarcosinate: 7.5% active matter
    • Coco Betaine: 2.5% active matter
    • Polyquaternium-7: 2-3%
    • Natrosol: 0.5-1%
    • Euxyl 9010: 0.5-1%
    • Hydrolyzed Protein: 0.5%
    • Fragrance: 0.5%
    • Disodium EDTA: 0.1%
  • Glodie

    October 31, 2023 at 10:04 am

    @Camel thank you very much for your help,the amount of natrosol was the one keeping it together

  • kot

    November 4, 2023 at 1:13 am

    you can also get rid of one of these Polyquaterium-7 5% Polyquaterium 11 5%- why do you need two ings which are doing the same job?

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